United Nations: Foreign ministers from Britain and Ecuador say they plan to meet on the sidelines of the UN General Assembly on the fate of WikiLeaks founder Julian Assange, as a standoff over his future enters its 100th day.

The two countries said British Foreign Secretary William Hague and Ecuador's foreign minister Ricardo Patino would hold talks on Thursday.

Assange, who is seeking to avoid extradition to Sweden for questioning over sex crimes allegations, has been sheltered inside Ecuador's embassy in London beyond the reach of British police since he fled there on June 19.

Ecuador has granted Assange asylum, but he will be arrested by police if he steps outside the building. Assange on Wednesday was addressing a sideline meeting at the UN via a video link from Ecuador's London embassy.